text: 
  class Users():
  
      def __init__(self, http_client):
          self.http_client = http_client
          self.users = {}
  
      async def get_picture(self, user):
  
          if user in self.users:
              info = self.users[user]
  
          else:
              info = await self.http_client.get_user_info(user)
              self.users[user] = info
  
          return info['logo']
  